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I've owned both. The Arri system is superior.
Unfortunately, the answer is no. I'd love to use my Arri motors (I have CLM and L-bus type motors myself), but it's not possible...
Or just upgrade your wheels... The $1000 update makes this a thing of the past, for the most part.
The new upgrade to the Klassen wheels makes them functionally equivalent to Alpha wheels. $1000 for current owners. Give them a call!
I'd start around 20 and head up.
Your holds are extremely low... Try cranking those up.